linux-kernel - [PATCH v4 1/6] dt-bindings: phy: samsung,usb3-drd-phy: add ExynosAutov920 HS phy compatible

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Message-Id: <20250701120706.2219355-2-pritam.sutar@samsung.com>
Date: Tue,  1 Jul 2025 17:37:01 +0530
From: Pritam Manohar Sutar <pritam.sutar@...sung.com>
To: vkoul@...nel.org, kishon@...nel.org, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org, alim.akhtar@...sung.com,
	andre.draszik@...aro.org, peter.griffin@...aro.org,
	neil.armstrong@...aro.org, kauschluss@...root.org,
	ivo.ivanov.ivanov1@...il.com, m.szyprowski@...sung.com,
	s.nawrocki@...sung.com, pritam.sutar@...sung.com
Cc: linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, rosa.pila@...sung.com,
	dev.tailor@...sung.com, faraz.ata@...sung.com, muhammed.ali@...sung.com,
	selvarasu.g@...sung.com, Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>
Subject: [PATCH v4 1/6] dt-bindings: phy: samsung,usb3-drd-phy: add
 ExynosAutov920 HS phy compatible

Add a dedicated compatible string for USB HS phy found in this SoC.
The SoC requires two clocks, named "phy" and "ref" (same as clocks
required by Exynos850).

It also requires various power supplies (regulators) for the internal
circuitry to work. The required voltages are:
* avdd075_usb - 0.75v
* avdd18_usb20 - 1.8v
* avdd33_usb20 - 3.3v

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Signed-off-by: Pritam Manohar Sutar <pritam.sutar@...sung.com>
---
 .../bindings/phy/samsung,usb3-drd-phy.yaml    | 37 +++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
index e906403208c0..2e29ff749bba 100644
--- a/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/samsung,usb3-drd-phy.yaml
@@ -34,6 +34,7 @@ properties:
       - samsung,exynos7870-usbdrd-phy
       - samsung,exynos850-usbdrd-phy
       - samsung,exynos990-usbdrd-phy
+      - samsung,exynosautov920-usbdrd-phy
 
   clocks:
     minItems: 1
@@ -110,6 +111,15 @@ properties:
   vddh-usbdp-supply:
     description: VDDh power supply for the USB DP phy.
 
+  avdd075_usb-supply:
+    description: 0.75V power supply for USB phy
+
+  avdd18_usb20-supply:
+    description: 1.8V power supply for USB phy
+
+  avdd33_usb20-supply:
+    description: 3.3V power supply for USB phy
+
 required:
   - compatible
   - clocks
@@ -235,6 +245,33 @@ allOf:
 
         reg-names:
           maxItems: 1
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,exynosautov920-usbdrd-phy
+    then:
+      properties:
+        clocks:
+          minItems: 2
+          maxItems: 2
+
+        clock-names:
+          items:
+            - const: phy
+            - const: ref
+
+        reg:
+          maxItems: 1
+
+        reg-names:
+          maxItems: 1
+
+      required:
+        - avdd075_usb-supply
+        - avdd18_usb20-supply
+        - avdd33_usb20-supply
 
 unevaluatedProperties: false
 
-- 
2.34.1